497629638 has 24 divisors (see below), whose sum is σ = 1176215976. Its totient is φ = 150796800.

The previous prime is 497629609. The next prime is 497629651. The reversal of 497629638 is 836926794.

It is a happy number.

497629638 is a `hidden beast` number, since 4 + 9 + 7 + 629 + 6 + 3 + 8 = 666.

It is a super-2 number, since 2×497629638² = 495270513232022088, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1256443 + ... + 1256838.

It is an arithmetic number, because the mean of its divisors is an integer number (49008999).

Almost surely, 2^497629638 is an apocalyptic number.

497629638 is an abundant number, since it is smaller than the sum of its proper divisors (678586338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

497629638 is a wasteful number, since it uses less digits than its factorization.

497629638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513300 (or 2513297 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 497629638 is about 22307.6139019842. The cubic root of 497629638 is about 792.4443003707. Note that the first 3 decimals are identical.

The spelling of 497629638 in words is "four hundred ninety-seven million, six hundred twenty-nine thousand, six hundred thirty-eight".